EXPERIMENTAL CALIBRATION OF THE PHLOGOPITE FLUORIMETER AT 500-700°C AND 1-4 KBAR, AND ESTIMATED HF CONCENTRATIONS OF FLUIDS ASSOCIATED WITH MARBLE: SOME EXAMPLES
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dc.contributor.author | Aksyuk A.M. | |
dc.contributor.author | Zhukovskaya T.N. | |
dc.date.accessioned | 2020-12-03T08:41:35Z | |
dc.date.available | 2020-12-03T08:41:35Z | |
dc.date.issued | 1994 | |
dc.identifier | https://elibrary.ru/item.asp?id=31096438 | |
dc.identifier.citation | Geochimica et Cosmochimica Acta, 1994, , 20, 4305-4315 | |
dc.identifier.issn | 0016-7037 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/20303 | |
dc.description.abstract | Fluorine distribution between (OH,F)-phlogopite and hydrothermal fluid has been experimentally investigated at 500–700°C and 1–4 kbar. Initial phlogopite compositions and HF concentrations in the HF-H2O fluid were varied from OH-phlogopite to F-phlogopite and from 0.001 to 0.1 mol/kg of H2O, respectively. Compositions of both phlogopite and solution were measured after the runs. The experimental data yield the following equation for the phlogopite fluorimeter: , where is a concentration in the fluid in mol/dm3 at temperature and pressure of interest; and are, respectively, the mole fractions of Mg and F in the octahedral and hydroxyl sites of phlogopite; is a water activity in fluid expressed as , where is a mole fraction and γ is a activity coefficient of water at T-P of fluid. The HF concentrations in natural fluids estimated by the fluorimeter equation range from 0.9·10−3 to 1.4·10−2 mol/dm3 for phlogopite formation in marbles of different localities: Adirondack Mountains (USA), Cairo del Diablo (Central Spain), Aldan Shield and Pribaikal'ye (Russia), and southwestern Pamir Mountains (Tajikistan). | |
dc.title | EXPERIMENTAL CALIBRATION OF THE PHLOGOPITE FLUORIMETER AT 500-700°C AND 1-4 KBAR, AND ESTIMATED HF CONCENTRATIONS OF FLUIDS ASSOCIATED WITH MARBLE: SOME EXAMPLES | |
dc.type | Статья |
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